Go to For Home Business's Sample Business Letters

The McGraw-Hill handbook of business letters

Random House Book of Contemporary Business Letters (call number 651.75 P75m)

Business and technical communication: an annotated guide to sources, skills, and samples; compiled by Sandra E. Belanger ... [et al.] (call number 016.65845 B964)

300+ successful business letters for all occasions (call number HF5726 .B67 2010)

Also search the Library Catalog for "business letters" to see more books.